A Hall effect without well-defined quasiparticles |
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Authors: | J.P.D. Taras-Semchuk J.M. Wheatley A.J. Schofield |
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Affiliation: | 15. IRC in Superconductivity, Madingley Road, Cambridge, CB3 OHE, UK
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Abstract: | Using a simple model of long-range impurity scattering, we illustrate how different transport and Hall relaxation rates may arise when the electron quasiparticle picture breaks down. We show how a broad and incoherent spectral function requires the use of a quantum version of the Boltzmann equation. This leads to unusual transport properties, in particular, a Hall relaxation rate which is independent of the quasiparticle scattering rate. |
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